Cisco 642-996 Question Answer

What design will effect traffic flows in the Data Center Core layer?

A. The domain needed to extend a VLAN from one switch to another is determined at the core layer
B. With a 3 layer (Access, Aggregation, Core) design the Layer 2 domain must be configured across
the Core for VLAN extension to occur
C. Extending Layer 2 through a core causes path blocking by STP and has the risk of uncontrollable
broadcast issues related to extending Layer 2 domains, and therefore should be avoided
D. Server-to-server traffic typically travels between aggregation modules by way of the core, while
backup and replication traffic remains within the aggregation module

Answer: C


When designing a collapsed core data center, which two technologies are used to virtualize the core and aggregation layers? (Choose two.)

A. FCoE
B. LISP
C. HSRP
D. VDC
E. VRF

Answer: DE